Quantum treatment of the Bose-Einstein condensation in nonequilibrium systems

We develop a fully quantum-mechanical approach, based on stochastic trajectories, for an incoherently pumped system of interacting bosons in contact with a thermal reservoir. It enables a complete characterization of coherence in such a multimode system. We apply our model to microcavity exciton polaritons interacting with acoustic phonons and observe the formation of a macroscopic occupation in the lowest-energy mode accompanied by the simultaneous establishment of temporal and spatial coherence. We describe the transition from thermal to coherent statistics together with the expected emergence of an off-diagonal long-range order.


Published in:
Physical Review B, 92, 11
Year:
2015
Publisher:
College Pk, Amer Physical Soc
ISSN:
1550-235X
Laboratories:




 Record created 2015-09-23, last modified 2018-03-17


Rate this document:

Rate this document:
1
2
3
 
(Not yet reviewed)